Fountain bow-pen.



G. F. ROTH.

FOUNTAIN BOW PEN.

APPLICATION FILED JAN. 27, 1912.

1,094,253. Patented Apr. 21, 1914.

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CHARLES F. ROTH, OF QUINCY, MASSACHUSETTS.

FOUNTAIN BOW-PEN.

Specification of Letters Patent.

Patented Apr. 21, 1914.

Application filed. January 27, 1912. Serial No. 673,770.

To all whom it may concern it known that 1, CHARLES F. ROTH, a citizen of the United States, residing at Quincy, in the county of Norfolk and State of )vflfl-SSHChUSGttS, have invented new and useful Improvements in Fountain Bowlens, of which the following is a specification.

An object of the invention is to provide a fountain bow-pen for describing circles and the like without necessitating a refilling of the pen at short intervals of time.

My invention embodies more particularly a device for use by draftsmen, the device being provided with an ink compartment, which when filled, will enable the bow-pen to be used for a greater length of time without refilling, than the bow-pens now generally employed for the same purpose. To accomplish the desired result, use is made of a leg and an arm pivotally connected at their upper ends to constitute a handle, the said leg being provided with means for retaining the lower end of the same in position on. a sheet of paper or the like, a tubular compartment member for engagement with the free end of the said arm and adapted to constitute a second leg, the said tubular member being adapted to be filled with a writing fluid, a feeder for engagementwith the said member and terminating in a pen nib and a bow member mounted to swing on the said tubular member and hav ing the free end thereof mounted for adjustable engagement with the said pen nib so that the writing fluid in the compartment member will flow downwardly through the feeder onto the pen nib and between the pen nib and the bow member.

Reference is to be had to the accompanying drawings constituting a part of this specification, in which similar characters of reference denote corresponding parts in all the views, and in which Figure 1 is a side elevation of my device. Fig. 2 is a vertical sectional view. Fig. 3 is a vertical sectional view taken on the line 33 in Fig. 1, looking in the direction of the arrow. Fig. 4 is a horizontal sectional view taken on the line 44 in Fig. 1, look ing in the direction of the arrow. Fig. 5 is a fragmentary side elevation of the compartment member mounted to removably inclose the pen nib.

Referring more particularly to the views, I provide a leg 10 and an arm 11, pivotally connected by a pin 12, a handle 13 provided with a collar 14 being mounted with the pin 2 extended therethrough to constitute a suitable holder the purpose of which will be hereinafter more fully disclosed. The lower end of the leg 10 is provided with an enlarged tubular portion 15 in which is slidably mounted a needle 16 adapted to be adjustably retained in rigid engagement with the enlarged portion 15 by a suitable adjusting screw 17. The arm 11 is provided at the free end thereof with a threaded reduced portion 18 adapted to threadedly receive a tubular compartment member 19 having threadedly mounted on the lower end thereof a tubular feeder 20 terminating at the lower end in a curved pen nib 21.

Mounted to encircle the compartment member 19 is a collar 22 having journaled thereon a bow member 23, the lower end of the said bow member being adapted to engage the pen nib 21 and adjustable relatively thereto by a screw 2t formed on a collar 25 mounted to rigidly encircle the compartment member 19, an aperture being provided in the bow member 23 to accommodate the screw 24, a nut 26 being threadedly mounted on the screw for the purpose of adjusting the bow member 23, which is normally adapted to be spaced from the pen nib 21 by a spring 27 secured to the compartment member 19 and having the free end thereof slidably engaging the inner side of the bow member.

In the use of my device the compartment 1r ember 19 is first disengaged from the arm 11 and is filled with a writing fluid, after which the compartment member is threadedly reengaged with the arm 11. The writing fluid in the compartment member 19 gravitationally flows into the feeder 20 and thence onto the pen nib 21 and by adjusting the free end of the bow member 23 so that the pointed end thereof will slightly touch the pen nib 21, the writing fluid on the pen nib will flow between the pen nib and the bow member and thence onto the paper, it being understood that one of the pointed ends of the needle 16 is engaged with the paper to prevent the leg 10 from sliding while at the same time the leg will be capable of being rotated with the arm 11 by means of the handle 13, which is preferably grasped by the thumb and first finger of the hand of the operator to swing the arm and the parts connected thereto so that the writing fluid between the pen nib and the bow r-xember will be conveyed to the paper to describe a circle or other elliptical figure.

As shown in Fig. 5, when my device is not in use a cap 28 can be mounted to encircle the feeder 20 and pen nib 21., the open end of the said cap being adapted to engage the lower end of the compartment member 19. By simply operating the nut 26, the bow member can be adjusted relatively, to the pen nib 21 for the purpose of varying the thickness of the lines made by the writing fluid on the paper.

I elaim:

In a device of the class described, the combination with a compartment member, of a tubular feeder carried thereby, a nib formed with the feeder, a bow member supported on the compartment member and movable to engage the nib, a collar carried by the compartment member, a screw formed with the collar and prO ect-ing therefrom to loosely pass through an elongated opening in the bow member, a nut threaded 0n the and feeder and have its inner end engage the compartment member when the bow member is loose on the screw and spaced from the sand nib.

In testimony whereof I afliX my signature in presence of two witnesses,

CHARLES F. ROTH.

Witnesses:

FRANK BONITZ, DANIEL F. COTTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner oi Patents, Washington, D. C. 

